Gemini Dates, Decans & Cusp Signs

Gemini season runs from May 21 to June 20, ushering in mutable air energy that loves variety, conversation, and learning. Although all Geminis share a quick mind and social agility, the exact birth date within this window meaningfully alters the personality thanks to the decan system. Each decan covers about ten days and carries its own sub-ruler that tints the Gemini archetype.

The first decan of Gemini spans May 21 to May 31 and is ruled by Mercury, the planetary ruler of Gemini itself. These are the most quintessentially Geminian natives: witty, talkative, curious, lightning-fast in thought, and constantly juggling interests. They are natural networkers, writers, and teachers, and they pair vividly with Libra and Aquarius, who share their love of ideas.

The second decan runs June 1 to June 10 and is sub-ruled by Venus, blending Mercurial wit with Libran charm. These Geminis are the diplomats of the sign, gifted at smoothing tensions, hosting gatherings, and finding the artistic angle in every conversation. They love beauty, music, and partnership, and they often find lasting harmony with Libra and Leo.

The third decan covers June 11…

The third decan covers June 11 to June 20 and is sub-ruled by Uranus, giving these Geminis an unmistakably inventive, rebellious, and futuristic streak. They share resonance with Aquarius, often pioneering new technologies, social movements, or unconventional lifestyles. They are the most independent of the three Gemini decans and pair magnetically with Aquarius and Sagittarius.

Cusp births deepen the picture. Those born May 17 to 23 sit on the Taurus-Gemini cusp, the Cusp of Energy. They merge Taurus stability with Gemini sociability, producing grounded communicators who can charm and persist in equal measure. They often shine in sales, teaching, and media.

Those born June 17 to 23 sit on the Gemini-Cancer cusp, the Cusp of Magic. They mix Gemini wit with Cancer emotional depth, creating storytellers, healers, and counselors who can articulate feelings most people cannot name. They are imaginative, family-aware, and quietly intuitive, which surprises people who expect typical Gemini detachment.

Decans also refine compatibility

Decans also refine compatibility. A first-decan Gemini may struggle with the slower pace of Cancer, while a third-decan Gemini thrives with the unconventional spark of Aquarius. A second-decan Gemini often falls hardest for Libra. This is why two Geminis born ten days apart can have very different love stories, friendships, and career paths. Decan-aware analysis turns generic sun-sign reading into a far more accurate map. Knowing whether you are a Mercury, Venus, or Uranus Gemini helps you understand your conversational style, your ideal partner, and the kind of work that will keep your restless mind genuinely engaged for the long haul ahead always.